HP Tuners Bulletin Board - GM V8 Tuning - Engine, Gas (Gen 5)https://forum.hptuners.com/
(2014+, Direct Injection)enSun, 07 Jun 2020 08:34:17 GMTvBulletin60https://forum.hptuners.com/images/misc/rss.pngHP Tuners Bulletin Board - GM V8 Tuning - Engine, Gas (Gen 5)https://forum.hptuners.com/
New chevy HDhttps://forum.hptuners.com/showthread.php?85631-New-chevy-HD&goto=newpost
Fri, 05 Jun 2020 15:45:25 GMTIs Hptuners working on support for the new Chevy L8T used in the chevy 2500HD and 3500HDIs Hptuners working on support for the new Chevy L8T used in the chevy 2500HD and 3500HD
]]>GM V8 Tuning - Engine, Gas (Gen 5)Iainsanity795https://forum.hptuners.com/showthread.php?85631-New-chevy-HDLT1 6.2L E92 How to Control Fan Relay For Swaphttps://forum.hptuners.com/showthread.php?85629-LT1-6-2L-E92-How-to-Control-Fan-Relay-For-Swap&goto=newpost
Fri, 05 Jun 2020 13:16:56 GMTI have done several Gen 5 LT series engine swaps with the E92 controlling a fan relay instead of having to utilize a PWM fan. Typically just setting...I have done several Gen 5 LT series engine swaps with the E92 controlling a fan relay instead of having to utilize a PWM fan. Typically just setting the Hz frequency to 1200Hz holds the relay closed letting the fans come on.

However, today I am having no luck. The factory PWM frequency setting is 100Hz and no matter the change I make in the tune, the signal across the relay remains 100Hz not the 1200Hz I set it to.

Any ideas?
]]>GM V8 Tuning - Engine, Gas (Gen 5)JBMRACING0105https://forum.hptuners.com/showthread.php?85629-LT1-6-2L-E92-How-to-Control-Fan-Relay-For-Swap2011 Avalanche tach question.https://forum.hptuners.com/showthread.php?85622-2011-Avalanche-tach-question&goto=newpost
Thu, 04 Jun 2020 22:51:54 GMTHi All, In process of building a 6.2 for my Avalanche. My question is I've been playing with HP tuners on my 5.3 for awhile now, is there anything I can do to get the dash tach to go past 6,000. Want to keep a better eye on rpm once i swap over, also its just annoying to watch tach stop climbing before shift. If nothing I can do with programmer is there any companies out there that address this or am i going to have to deal with it?? Thanks for any advise. :cheers:
]]>GM V8 Tuning - Engine, Gas (Gen 5)CHEVYGUY5777https://forum.hptuners.com/showthread.php?85622-2011-Avalanche-tach-questionVATS disabled but refuse to runhttps://forum.hptuners.com/showthread.php?85609-VATS-disabled-but-refuse-to-run&goto=newpost
Thu, 04 Jun 2020 09:09:05 GMTHi!
I have an engine swap from a Camaro 2013 with E38 ECM. The VATS is disabled (with a Write Entire), but the engine refuse to run. Replacing the...Hi!

I have an engine swap from a Camaro 2013 with E38 ECM. The VATS is disabled (with a Write Entire), but the engine refuse to run. Replacing the ECM with another E38 it runs just fine, so the problem seems to be the ECM as such. The ECM comes from a car with manual transmission and now it is running with an automatic transmission. Tune file is attached. After a start attempt I get the following error codes:

]]>GM V8 Tuning - Engine, Gas (Gen 5)bsonhttps://forum.hptuners.com/showthread.php?85609-VATS-disabled-but-refuse-to-runVVE Calibration timing issuehttps://forum.hptuners.com/showthread.php?85601-VVE-Calibration-timing-issue&goto=newpost
Wed, 03 Jun 2020 23:03:35 GMTI am currently tuning a customers 2014 Silverado 5.3l, ported heads, mild cam, and headers. I am new to tuning gen V, I have tuned multiple gen 3 and...I am currently tuning a customers 2014 Silverado 5.3l, ported heads, mild cam, and headers. I am new to tuning gen V, I have tuned multiple gen 3 and 4 without issue, but I am running into an issue where when I disable the maf to tune speed density fueling, its trying to throw around -20 to -30 deg of timing at idle, causing map to be around 80-90kpa and glowing the headers.

I have already calibrated maf without issue, idle timing in maf only mode doesnt ever go negative and idles right on target.

Off idle seems to be okay aside from fueling not dialed in yet. At this point i had not seem the slightest bit of knock retard. I figured I would try taking some fuel out and the truck then idled okay, timing moving right around 0 deg. As soon as I put it in drive though, it started pulling timing again and threw up to 11 deg of knock retard, this still being at idle just in gear.

Loaded the maf only tune back in and the truck acted completely normal. Both of these tunes are identical aside from one having speed density disabled and one having maf disabled. Also fuel trims are only around -10% on vve, which should in no way cause this.

I do still have some work to do on the torque calibration and I understand that if its calculating more than expected it will pull timing, but it goes the complete opposite way between vve and maf with all other settings including torque the exact same.

Is the process of disabling maf different between gen 4 and 5 or am i just missing something?

Ive attached 3 logs, one from the first vve cal attempt without any fueling changes, one vve cal after i took fuel out and getting idle KR, and one on idling in maf only mode and putting it in gear. Also attaching the tune with maf disabled.
Thanks

]]>GM V8 Tuning - Engine, Gas (Gen 5)performancemastersllchttps://forum.hptuners.com/showthread.php?85601-VVE-Calibration-timing-issueKnock on stock spark tableshttps://forum.hptuners.com/showthread.php?85584-Knock-on-stock-spark-tables&goto=newpost
Wed, 03 Jun 2020 10:59:04 GMTI am having issues with knock on 91 pump gas with the stock spark tables on a 2018 gmc sierra 5.3 l83 A6 . Im honestly puzzled by it and am wondering...I am having issues with knock on 91 pump gas with the stock spark tables on a 2018 gmc sierra 5.3 l83 A6 . Im honestly puzzled by it and am wondering if it's due to the lt4 injectors and lt4 fuel pump. It only happens under low rpms/high load. 3rd gear and up between 1100-1400 rpms when the engine is lugging for power. I've had to put negative timing to combat it. On the highway at 60mph I'm at 1150-1200 rpms. If i accelerate it will knock from 1100 rpms to 1400 rpms unless I make the truck downshift then there's no problem. If I run e85 I have no issues with knock just on 91.

What is going on? Any ideas? Is there anyway to increase the rpm at highway speed? I am pretty sure that would require new gears right?

My tuner said it was bad gas when it first started doing it, but that's not the case because it happens everytime I fill up with 91.

This was the tuners response about it "What happens is I bet you are in higher gear (4,5, 6th which has low tq multiplication) and lugging it which causes a high load low rpm issue with spark"
]]>GM V8 Tuning - Engine, Gas (Gen 5)GMCfasthttps://forum.hptuners.com/showthread.php?85584-Knock-on-stock-spark-tablesGen V l83 cam tuning questionshttps://forum.hptuners.com/showthread.php?85579-Gen-V-l83-cam-tuning-questions&goto=newpost
Wed, 03 Jun 2020 00:57:11 GMTHey guys I?ve got a 14 Silverado with tsp stage 2 218/226 635/635. 112 lsa. Long tubes. Cai and dynomax exhaust. My truck is running decent and has...Hey guys I?ve got a 14 Silverado with tsp stage 2 218/226 635/635. 112 lsa. Long tubes. Cai and dynomax exhaust. My truck is running decent and has a street tune in it at the moment. I just downloaded the hp tuning software and will be tuning it myself. Any tips to do while tuning it for the best performance results. I?ve bumped the idle up some to help it from stalling but would like some feedback on the air/fuel tuning and torque management tuning as well. I?m a little new on the tuning side.
]]>GM V8 Tuning - Engine, Gas (Gen 5)Tmiracle21https://forum.hptuners.com/showthread.php?85579-Gen-V-l83-cam-tuning-questions2016 camaro ss e85 tunehttps://forum.hptuners.com/showthread.php?85570-2016-camaro-ss-e85-tune&goto=newpost
Tue, 02 Jun 2020 18:53:28 GMTI am having trouble after doing a e85 tune, getting codes p0171 p0174 lean, is theere something i am missing on my tune? Does anyone have the correct...I am having trouble after doing a e85 tune, getting codes p0171 p0174 lean, is theere something i am missing on my tune? Does anyone have the correct numbers to change on my tune, i think the stoich numbers are wrong. Thank you
]]>GM V8 Tuning - Engine, Gas (Gen 5)0808mjshttps://forum.hptuners.com/showthread.php?85570-2016-camaro-ss-e85-tune2014 GMC Sierra Denali 6.2 Tune neededhttps://forum.hptuners.com/showthread.php?85550-2014-GMC-Sierra-Denali-6-2-Tune-needed&goto=newpost
Mon, 01 Jun 2020 22:59:21 GMTHi guys
i drive a daily 2014 GMC Sierra Denali 6.2 and just got my hands on a HP Tuner
Wondering if you guys can share a file for better fuel...Hi guys

i drive a daily 2014 GMC Sierra Denali 6.2 and just got my hands on a HP Tuner

Wondering if you guys can share a file for better fuel economy and performance

The car is bone stock and im just thinking a getting a file a slap it in

Ported MSD
Ported LT5 T/B
2 inch headers w high flow cats
Rotofab
E85
]]>GM V8 Tuning - Engine, Gas (Gen 5)N20Professorhttps://forum.hptuners.com/showthread.php?85526-2020-LT1-Bolt-ON-TuneAnyone have issues VVE tuning late model GENV stuff? Limp mode w/no mafhttps://forum.hptuners.com/showthread.php?85504-Anyone-have-issues-VVE-tuning-late-model-GENV-stuff-Limp-mode-w-no-maf&goto=newpost
Sat, 30 May 2020 14:20:07 GMTI've ran through a few 2018-19 cars that won't let us tune the VVE. As soon as you turn off the MAF, the car goes into limp mode. Is there an option or way around this? Clearly we can't tune in limp mode. What have you guys been doing or are you not running into this issue?
]]>GM V8 Tuning - Engine, Gas (Gen 5)JASON11WS6https://forum.hptuners.com/showthread.php?85504-Anyone-have-issues-VVE-tuning-late-model-GENV-stuff-Limp-mode-w-no-mafnot as much power gain as i expected.. any advice or input on the tune?https://forum.hptuners.com/showthread.php?85498-not-as-much-power-gain-as-i-expected-any-advice-or-input-on-the-tune&goto=newpost
Sat, 30 May 2020 01:12:34 GMTalright guys this thing has been a little work in the making for a friend, but we got long tube headers, no cats, edelbrock supercharger with stock...alright guys this thing has been a little work in the making for a friend, but we got long tube headers, no cats, edelbrock supercharger with stock setup for supercharger, a Circle D converter 3,000-3,200. she runs good and shifts solid but sometimes in lockup the converter will shimmy. but the dyno numbers were a little low for what we estimated. any thoughts or advice would be greatly appreciated. 2015 gmc sierra 5.3 edelbrock superrcharger.hpt2015 gmc sierra 5.3 edelbrock superrcharger.hpt

]]>GM V8 Tuning - Engine, Gas (Gen 5)Blue95silhttps://forum.hptuners.com/showthread.php?85498-not-as-much-power-gain-as-i-expected-any-advice-or-input-on-the-tunehttps://forum.hptuners.com/showthread.php?85473-2016-Whipple-tahoe-3-75-quot-pulley-already-out-of-fuel-any-other-oem-fueling-tricks&goto=newpost
Fri, 29 May 2020 00:34:36 GMTstock 5.3 tahoe except 2.9L whipple with 3.75" pulley and aem x gauge for logging (after primary cats). the 4.375" pulley made 450whp . wanted to make around 550whp so i changed the pulley. i read alot on here that the stock fuel could support right at 600whp before needing lt4 parts and or cams with fuel lobes

maxed out the SOI
added the max and desired HPFP up higher just to see if it would work
the IPW is pushing 8ms its maxed and the HPFP is falling off

]]>GM V8 Tuning - Engine, Gas (Gen 5)volcomstone550https://forum.hptuners.com/showthread.php?85473-2016-Whipple-tahoe-3-75-quot-pulley-already-out-of-fuel-any-other-oem-fueling-tricksVVE Adjustments help pleasehttps://forum.hptuners.com/showthread.php?85461-VVE-Adjustments-help-please&goto=newpost
Thu, 28 May 2020 19:22:54 GMTSo I have a 17 Camaro SS, trying to figure out the maths to adjust my fuel trims into my VVE tables.... The VVE tables on the Row side it is reading...So I have a 17 Camaro SS, trying to figure out the maths to adjust my fuel trims into my VVE tables.... The VVE tables on the Row side it is reading Map / Baro ( pressure ratio ) I cannot seem to get this working. From what I am reading the LTFT and STFT should be added by the math, and then graphed based on the VVE table set up. But when I do this, and select Paste Special multiply half % the table jumps a lot. Any help would be greatly appreciated.
]]>GM V8 Tuning - Engine, Gas (Gen 5)MartyB2017SShttps://forum.hptuners.com/showthread.php?85461-VVE-Adjustments-help-please